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Jul 1, 2009

#26

blue_oval

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Joined: Feb 2008

Posts: 366

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From: Worcester MA

Quote:

Originally Posted by Fx4wannabe01

Yes....Scangauge is cal'd to show 4% faster speed than what it's reading, and that also reflects the formulas that figure mileage, trip, odo, all that jazz.. My tires are turning 104% faster than as if I had stock wheels and tires. No factory PCM changes.

just looking quick i didnt see anything about having that option on stuffforyourranger.com

Jul 1, 2009

#27

kymudder08

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Joined: Apr 2009

Posts: 838

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From: Owensboro, KY

i was lookin into those. are they universal as in work in ANY vehicle or are they vehicle specific?

Jul 1, 2009

#28

99ranger4x4

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From: Austin, TX

Quote:

Originally Posted by Fx4wannabe01

4.88 and 35s on a truck that came with 4.10 and 30.5's.....truck thinks it's going 4% faster than it really is. I have no tune to fix that yet.

Nope....well..yes..it is the top speed of the day AND the top speed of the truck because I did hid the speed limiter.

the truck should think its going slower than it is.. thats what happens with bigger tires.

my speedo said something like 88 and the gps said 102

Jul 1, 2009

#29

04blackedge

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From: Durham, NC

Quote:

Originally Posted by kymudder08

i was lookin into those. are they universal as in work in ANY vehicle or are they vehicle specific?

Any OBDII vehicle. I swapped mine from my Ranger, to my girls Sentra, my moms Sante Fe and my F-150 a lot.

Jul 1, 2009

#30

98rangerxlt

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Joined: Mar 2009

Posts: 725

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From: Bakersfield, CA

Quote:

Originally Posted by Fx4wannabe01

Plus I think I'll be putting on a whine maker...

Send me one too.

Jul 1, 2009

#31

redranger4.0

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Joined: Jun 2004

Posts: 15

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From: Firey depths

Quote:

Originally Posted by zabeard

yeah mine has had a few drinks too.

Thats not what I want to hear.....

Jul 1, 2009

#32

kymudder08

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Joined: Apr 2009

Posts: 838

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From: Owensboro, KY

whats OBDII? and is a 00-02 z71 that?

Jul 1, 2009

#33

redranger4.0

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Joined: Jun 2004

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From: Firey depths

Quote:

Originally Posted by kymudder08

whats OBDII? and is a 00-02 z71 that?

Most 1996 vehicles and all vehicles made from 97+

Jul 2, 2009

#34

Fx4wannabe01

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From: Boring, Oregon

Quote:

Originally Posted by shadow905

wow thats amazing. im lucky to get 11. lol but im also not geared properly or have a chip or anything.

I've got the stock tune in, thunderbolt airbox w/ k&n w/ steel tube, 2.5" catback to a dynomax ultra flow oval then dumped behind the muffler, synthetic oils everywhere, 40k old autolite double platinums, 40k old fuel filter, 4.88's and 35" BFG KM's at an unknown pressure(lol).

This is the 2nd tank after I poured in this new Gumout fuel attitive. And well....I'm definately seeing improvements after the first tank that actually burnt the gumout.

This was almost all highway at 70 and over mph. Average speed that day was like 65mph i think?

Quote:

Originally Posted by 02oregonedge+

Love those gauges..Maybe we can swap mine for yours at the meet???

uhhh.....If I ever find my silver cluster to upgrade my LED mod, I'll be selling this here expo cluster...

Quote:

Originally Posted by WowMike2001

Sp Shane - Did you find that by driving at 3k rpm its better then keeping it around 2200ish? I was figuring what gear I woudl run on my trip last time.. 4th was putting me at right around 3000k, and 5th was putting me at 2200.. the suck part was at 2200 I could barely hold speed going up a hill at 70mph.. had to be going a slight bit faster to do that, but local spee was 70 and idaho cops are asses

lol

You know...having finally looked at the numbers on average after a 'high speed' run at high RPMs, I feel comfortable in saying this engine(4.0L SOHC) loves higher RPMs for efficiency. Marie mentioned getting better mileage in 4th on the freeway with her 3.73's and 33's compared to 5th.

Quote:

Originally Posted by blue_oval

just looking quick i didnt see anything about having that option on stuffforyourranger.com

What option are you talking about? I got mine from Wayne when he first started carrying them.

Quote:

Originally Posted by 99ranger4x4

the truck should think its going slower than it is.. thats what happens with bigger tires.

my speedo said something like 88 and the gps said 102

Sorry Matt....I did the math before choosing my gear ratio. I compared 4.10 to 4.56 to 4.88 to even 5.13 with variable in tire diameter...rpm at a given speed in overdrive or another gear, effective ratios, and things of similar nature. I can't find the formulas right now, but my truck is indeed reading 104% of the actual speed with the 34.8's and 4.88's. My effective ratio is overall lower than my truck was stock with it's 245/75R16(30.5) and 4.10's.

My speed showed on the Scangauge has been confirmed by two different GPS's and both of different brands. Also by those darn cop speed trailers on the side of the road. Oh...and a cop's radar gun as well. lol. I'm within a half a mile and hour from being 100% accurate to actual speed(On the scangauge).

In stock form with the 30.5's or the 31's, my speed limiter was about 92/93 mph. With 35's on my truck and still 4.10, I was hitting the limiter in 3rd gear not pulling many RPMS, yet was traveling at 100 or 105...my effective ratio dropped because of the larger than stock tires(speedo reading slower than actual traveling speed). I had the Scangauge setup for +10% I believe(because that was the distance in tire diameter after the calculations).